english

Two-Layer Personal Financial Design

Most couples focus on shared finances, but real financial resilience requires two layers: household design and personal financial design. Learn how an emergency fund protects life when income suddenly stops.

2026.03.08

③ お金の前提　Money Assumptions

Stepping Off the Line

Why do we follow the same life path as everyone else? This essay explores conformity, social pressure, debt, and the myth of “normal,” and why independent thinking matters more than ever.

2026.03.07

① 思考の前提　Assumptions of Thinking

Stepping Off the Line | Episode 6

Should parents give their children answers or questions? This essay explores why the most valuable thing we can pass to the next generation is not certainty, but the ability to think and choose for themselves.

2026.03.07

① 思考の前提　Assumptions of Thinking

Electricity on a Boat: How We Manage Power While Living on a Catamaran

How does electricity work on a liveaboard boat? A real example of solar power, battery management, and daily energy decisions on a catamaran.

2026.03.07

② 人生設計の前提　Life Design Assumptions

Vanity Steals Freedom

Vanity is not a flaw. It’s a survival instinct. But in modern finance, lifestyle inflation silently kills compound growth. Here’s why freezing your ego is the key to real freedom.

2026.03.04

１　前提　構造　世界　Assumptions / Structure / World

The 80% Rule: A Financial Defense Design

Why living on 80% of your household income creates financial stability. Learn how emergency funds and structural design protect against income loss, caregiving leave, and unexpected illness.

2026.03.03

１　前提　構造　世界　Assumptions / Structure / World

To My 15-Year-Old Son

After surviving a 2.3% survival rate in ICU, I reflect on faith, death, and what it means to live without believing in God. A letter to my 15-year-old son about religious literacy, mortality, and choosing your own premise.

2026.02.28

宗教

The Price of Freedom

22 Years Old: -$100k vs +$100kMeta DescriptionTwo 22-year-olds. Same electrical career. Same salary. One starts with -$1...

2026.02.22

② 人生設計の前提　Life Design Assumptions

The Price of Freedom: What It Really Costs to Live Independently as a Teen in Australia

My teenage son said,“I don’t want to live on a boat.”His father replied,“Then rent on land.”That was the end of the conv...

2026.02.22

② 人生設計の前提　Life Design Assumptions

Politics Without Talking About Politics

Politics is not about parties or personalities. It is about assumptions, human nature, emotion, and system design. A structural breakdown of how societies are built.

2026.02.22

⑧ 社会・制度の前提　Society & System Assumptions